subject
Engineering, 09.01.2022 14:00 Carlyalexis641

A pistoncylinder device contains 2 kg of air initially at 5 MPa and 450°C. The air is first expanded isothermally to 500 kPa, then compressed polytropically with a Polytropic exponent of 1.4 to the initial pressure, and finally compressed at the constant pressure to the initial state. Determine the boundary work for each process and the network of the cycle.

ansver
Answers: 1

Another question on Engineering

question
Engineering, 03.07.2019 15:10
Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.
Answers: 1
question
Engineering, 04.07.2019 19:10
Acircular aluminum shaft mounted in a journal is shown. the symmetric clearance gap between the shaft and journal is filled with sae 10w-30 oil at t 30°c. the shaft is caused to turn by the attached mass and cord. develop and solve a differential equation for the angular speed of the shaft as a function of time.
Answers: 2
question
Engineering, 06.07.2019 03:10
Air is flows through an adiabatic nozzle with an inlet pressure of 400 psia at a temperature of 300°f and a velocity of 20 ft/s. the outlet pressure is 40 psia and the velocity is 800 ftl/s. determine the outlet temperature of the air using: a) property tables b) specific heat (using the specific heat value for air at 300°f)
Answers: 3
question
Engineering, 06.07.2019 05:10
Air contained in a piston-cylinder assembly undergoes a process from an bar. the initial pressure of 1 bar and temperature of 400 k to a final pressur initial volume of air is 0.2 m3. the process is described by pv- constant. assuming ideal gas behavior and neglecting kinetic and potential energy effects, determine the a)-mass of air, in kg b)-work for the process, in kj c)-heat transfer for the process, in kj pts
Answers: 1
You know the right answer?
A pistoncylinder device contains 2 kg of air initially at 5 MPa and 450°C. The air is first expanded...
Questions
question
Mathematics, 19.04.2021 21:00
question
Mathematics, 19.04.2021 21:00
question
Geography, 19.04.2021 21:00